HTML is the language that describes the structure and the semantic content of a web document. Content within a web page is tagged with HTML elements such as <img> , <title> , <p> , <div> , <picture> , and so forth. These elements form the building blocks of a website.

Web browsers can read HTML files and compose them into visible or audible web pages. Browsers do not display the HTML tags and scripts, but use them to interpret the content of the page. HTML describes the structure of a website semantically along with cues for presentation, making it a markup language, rather than a programming language.